I will say that for anyone who is really good at backing up semi trailers, getting a pull trailer and learning to back it up is an initially-humbling experience. I've been doing the latter the last 6-8 years, and have actually gotten very good at it, as I need to back one around a very tight 90-degree turn to where I park it. The only trouble now is when I hook up a boat trailer, which should be dead-easy to back around, I get my brain double-crossed again by the pull trailer!
I used to tease that I could do a slalom course in reverse at speed with a boat trailer, but after so many years with a pull trailer, I'm not sure that's true anymore. Everyone knows steering is reversed with a semi trailer, but with a pull trailer it's reversed a second time, so to speak. Easy once you get the hang of it, but going back and forth initially ruins any muscle memory, and puts you back to having to think about what you're doing.